Gets the user agent string and all lowercase.
var ua = Navigator.userAgent.toLowerCase ();
document.write (UA);
In the previous article, we introduced the browser rendering engine, platform, Windows operating system, mobile device and game system based on JavaScript code detection Access Web page
, interested friends can click the full text to learn more details.
1. Identify the rendering engine
The
How to determine the browser version and the browser kernel using js
This article mainly introduces how to judge the browser version and kernel of the browser by js, which can be used for judgment of various browsers and has some reference value. For more information, see
This article describes how to determine the browser version and the browser kernel in js. Share it with you for your reference. The specific implementation method is as follows:
The Code is as follows:
If (! Browser. ie ! Br
. The so-called stateful proxy is used to make different processing based on different situations. These processing have a positive correlation. For example, if three people send numbers, A needs to pass a number to C through B. In one case, whatever a says, B says the same number to C, which is called stateless proxy; another State is that if a says 1, B will pass to the C Number 2. If a says 2, B will pass to the C number 3, which is a stateful proxy. Some materials have b2bua, which is essent
Determine the browser version and the browser kernel, and determine the browser kernel
If (! Browser. ie ! Browser. mac) {var UA = navigator. userAgent. toLowerCase (). toString (); // determines whether it is a non-IE version in the IE kernel if (UA. indexOf ('360ee')>-1) | (UA. indexOf ('360se')>-1) | (UA. indexOf ('
This article mainly introduces how to judge the browser version and kernel of the browser by js, which can be used for judgment on various browsers and has some reference value, for more information about how to determine the browser version and the browser kernel, see the examples in this article. Share it with you for your reference. The specific implementation method is as follows:
The Code is as follows:
If (! Browser. ie ! Browser. mac ){Var UA
engines, we can use the robots.txt file to restrict some permissions. This article is no longer detailed, you can search the relevant content.Author:name= "Author" content= "Guihailiuli"/>This code can explain the author of the page, content can be the creator or contact information.Copyright:name= "Coptright" content= "Created by Guihailiuli"/> The copyright of the description page.Revisit-after:name= "Revisit-after" content= "7 Days"/> Set the Robot/spiser time, General large web site, spi
it is a mobile terminalIos:!! U.match (/\ (i[^;] +;( U;)? Cpu.+mac OS x/),//ios terminalAndroid:u.indexof (' Android ') >-1 | | U.indexof (' Linux ') >-1,//android terminal or UC BrowserIphone:u.indexof (' iphone ') >-1,//whether for iphone or Qqhd browserIpad:u.indexof (' ipad ') >-1,//whether ipadWebapp:u.indexof (' Safari ') = =-1,//whether the Web should be program, no head with bottomWeixin:u.indexof (' Micromessenger ') >-1,//whetherQq:u.match (/\sqq/i) = = "QQ"//whether QQ};}(),Language:
(Var i=;i
The current project has to determine whether the specified version of the two version of this demand, Baidu Google found a lap, the code is limited, not universal, or even a bunch of wrong things around ...
The current method has two main points, one is the need to convert the cut version number to a numeric array, and a comparison of the size of the time to 1 0 13 values, so that regardless of the number of separate version number, the overall divided into several paragraphs, can
Label: The rationale is simple: the background does not filter the UA when receiving UA, nor does the PDO interact with the data (the actual PDO is very necessary), causing the UA to have malicious code that is eventually executed in the database. Bug Code: Local hit an environment, Bug code part: Save Visitor's IP information $db =dbconnect ();
$tbLog = $db->tb
Shell Script
Just do it, simply write a Shell script and it's done!
Script Name: Web site dead chain generation script
Script function: Daily analysis of the site the day before the Nginx log, and then extract the status code of 404 and UA for Baidu Spider Crawl path, and write to the site root directory death.txt file, used to submit Baidu dead chain.
Scripting code:
#!/bin/bash
#Desc: Death Chain File Script
#Author: Zhangge
#Blog: http://yo
Phpnew Blog Built-in discuz ubb type editor, editor function is inserted at the cursor, can be on the IE11 has been inaccurate.Analysis today, finally found the reason. The old version of the JS file is written by the browser to determine an exception, so that the insertion point has been in the head. Today's fix.
Provides a JS function. Returns an array.
Copy Code code as follows:
function Sys_useragent () {
var useragent = navigator.useragent,
Rmsie =/(MSIE\S|TRIDENT.*RV:) ([\w
Shell Script
Just do it, simply write a Shell script and it's done!
Script Name: Web site dead chain generation script
Script function: Daily analysis of the site the day before the Nginx log, and then extract the status code of 404 and UA for Baidu Spider Crawl path, and write to the site root directory death.txt file, used to submit Baidu dead chain.Scripting code:
#!/bin/bash#Desc: Death Chain File Script#Author: Zhangge#Blog: http://your dom
client or the server running User-agent (collectively known as UA) detection, the first thing to do is to update your detection code, the IE10 and based on WebKit browser equal treatment. This is a basic condition for starting to adjust your code to support IE10. We've released some best practices on how to use UA to detect IE10, but here's the IE10 UA string we
Create a HttpClient object directly
Closeablehttpclient httpClient = new Httpclients.createdefault ();
This code produces a 403 forbidden because there is a problem with the User-agent field and we need to set the UA field. UA is the identity of the browser identity. User-agent is part of the HTTP protocol and is part of the header domain, and the User agent is also referred to as
browser type, and record the number of visitors to optimize the design of your website to improve the customer experience.Copy codeThe Code is as follows:Or:KindEditor:KE = {};KE. browser = (function (){Var ua = navigator. userAgent. toLowerCase ();Return {VERSION: ua. match (/(msie | firefox | webkit | opera) [\/: \ s] (\ d + )/)? RegExp. $2: "0 ",IE :( ua. ind
There are many methods for determining the browser and version on the Internet. Here, the younger brother sums up one or two to save everyone's time.1. jquery method: Regular Expressions can be used to determine common browsers and their versions.Copy codeThe Code is as follows:Var ua = navigator. userAgent;Ua = ua. toLowerCase ();Var match =/(webkit) [\/] ([\ w.
Http-equiv, as the name implies, is equivalent to the HTTP file header function, it can send back some useful information to the browser to help correct and accurate display of the content of the Web page, and the corresponding property value of content,content content is actually the variable value of each parameter.
X-ua-compatible (ie Proprietary)The fierce competition in market share of Web browser has brought about the trouble of compatibility
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